BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Write a balanced chemical equation for the formation of CH3OH() from the elements in their standard states. Find the value for ΔrH° for CH3OH() in Appendix L.

Interpretation Introduction

Interpretation:

The enthalpy change for the formation of methanol and the balanced chemical equation has to be determined.

Concept Introduction:

If a reaction proceeds in two or more other reaction,ΔrH0 for the overall process is the sum of ΔrH0 values of those reactions-Hess’s law.

Explanation

The unbalanced equation for the reaction is C+H2+O2CH3OH. The equation can be balanced by multiplying the atoms with appropriate number, in the above equation, on the left one carbon atom and two hydrogens and two oxygens and on the right hand side one carbon and four hydrogens and one oxygen atom.

The balanced equation is 2C+4H2+O22CH3OH in the equation, on the left two carbon atoms and six hydrogens and two oxygens and on the right hand side two carbon atoms and eight hydrogens and one oxygen atom.

The change in enthalpy is:

  ΔfH0=(1molC1mol-rxn)ΔfH0(C)+(2molH21mol-rxn)ΔfH0(H2)+(1/2molO21mol-rxn)ΔfH0(O2)

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Weight-bearing activity that improves muscle strength and endurance has no effect on maintaining bone mass. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

The current in a toil changes from 3.50 A to 2.00 A in the same direction in 0.500 s. If the average emf induce...

Physics for Scientists and Engineers, Technology Update (No access codes included)